FDA finally moves to close 'secret loophole' letting thousands of unvetted chemicals into US food

In a move that will send shivers through the processed food industry, American health officials have proposed a long-overdue rule change that would finally force food producers to notify authorities before slipping new ingredients into our packaged goods. For too long, a regulatory gap has allowed thousands of substances to enter the nation's food supply with barely a nod from the authorities.

Under the Food and Drug Administration's draft regulation, businesses would be required to document and present written safety justifications for new ingredients, allowing officials to examine potential hazards. Currently, manufacturers independently determine whether an ingredient qualifies as 'generally recognized as safe,' or GRAS, without any obligation to report or submit evidence to the agency, though a subset of companies does so voluntarily.

'Shifting to a mandatory notification system closes a decades-old information gap, giving the FDA the comprehensive visibility needed to enhance postmarket safety,' acting FDA Commissioner Kyle Diamantas told reporters on Monday.

A 120-day public comment window has been opened by the agency to gather feedback on the plan.

What is the GRAS loophole and why does it matter?

Since the late 1950s, federal oversight has acknowledged that staple items like vinegar and spices are widely consumed and traditionally regarded as harmless. But over time, the inventory of self-certified GRAS substances expanded to encompass numerous natural and synthetic additives, which entered commercial distribution without external government evaluation.

Health advocacy organizations, including the Center for Science in the Public Interest, contend this framework created a 'secret GRAS loophole.' Industry representatives maintain that corporate safety evaluations are every bit as comprehensive as formal regulatory reviews.

Susan Mayne, former director of FDA's food program, observed that while the rule would provide the agency with improved oversight of the wide array of market additives, only a minor fraction would face formal evaluation.

'This is a reasonable first step towards a more complete inventory, but most self-affirmed GRAS ingredients will still not be reviewed for safety by the FDA, with food ingredient safety continuing to be risk-based,' said Mayne, who is now a public health expert at Yale University.

Additionally, the FDA intends to make public a directory of submissions provided by manufacturers. Mayne emphasized that consumers must recognize that 'inclusion on the list would not mean FDA thinks the ingredient is safe.'

Ultraprocessed foods finally get a formal definition

In a related step, the agency announced it has finalized the federal government's initial formal definition for ultraprocessed foods, though specific wording and details remain undisclosed. The draft definition has been forwarded to the White House for further evaluation.

Public health proponents view a standardized definition as a critical milestone toward examining products linked to widespread chronic illnesses in the population. A formal baseline could facilitate expanded federal research and lay the groundwork for potential future restrictions or mandatory warning labels.

Neither measure is anticipated to instantly alter consumer eating habits, which remain heavy in sugar, sodium, and fats that contribute to conditions including heart disease, diabetes, and obesity. Nevertheless, these efforts align with the central agenda of Health Secretary Robert F. Kennedy Jr., who assumed office with a pledge to target synthetic dyes, additives, and related compounds.

'These two actions will change how the federal government oversees what's in our food and how we understand the foods that Americans eat,' Kennedy said at an event Monday at HHS headquarters.

Ultraprocessed items undergo industrial manufacturing processes involving additives, colorings, preservatives, and other elements absent from home cooking. Common examples comprise soft drinks, sweetened breakfast cereals, snack chips, frozen pizzas, and processed grocery goods.

Researchers have spent more than ten years trying to establish standardized classifications for processed foods. However, broad criteria present challenges, as they may capture items such as whole wheat bread, granola, and yogurt — foods that undergo substantial processing yet maintain nutritional value. Recent classification frameworks have incorporated specific exemptions for items fulfilling established dietary standards regardless of their processing level.

Approximately 10,000 chemical additives, including thickeners, preservatives, and packaging substances, are currently permitted across the domestic food supply.

Will the new rules go far enough?

Diamantas clarified on Monday that the proposed adjustments would not force every new ingredient to undergo a full agency evaluation, noting that mandatory pre-market approvals would require legislative action from Congress.

'What we're doing is requiring companies that utilize the pathway to notify us of their conclusions so that we have greater visibility,' Diamantas said.

Framework guidelines specify a 180-day window for the agency to review filings. Should health officials identify potential safety issues, they could seek supplementary data or request that the manufacturer postpone launching the ingredient.

Reform advocates argue that mere notification does not go far enough.

'It must also include strong, science-based safety standards and thorough, independent FDA review before chemicals are allowed in our food,' said Melanie Benesh of the nonprofit Environmental Working Group.

Kennedy indicated that the Trump administration intends to petition Congress to grant the FDA expanded authority over food additives.

'Congress needs to give FDA the additional tools it needs to keep pace with the changing food supply and protect the American people,' Kennedy said.

In principle, any intentional food additive requires formal agency authorization unless deemed inherently safe.

FAQ: What you need to know about the FDA's food additive proposal

What is the GRAS loophole?

GRAS stands for 'generally recognized as safe.' Since 1997, food manufacturers have been allowed to self-certify new ingredients as safe without notifying the FDA. This has allowed thousands of chemicals to enter the food supply without government review.

Will the new rule require FDA approval for all new ingredients?

No. The proposal only requires companies to notify the FDA of their safety conclusions. Full pre-market approval would require new legislation from Congress.

What is ultraprocessed food?

Ultraprocessed foods undergo industrial manufacturing with additives, colorings, and preservatives not found in home cooking. Examples include soft drinks, sweetened cereals, snack chips, and frozen pizzas.

When will these changes take effect?

The FDA has opened a 120-day public comment period. The rule is not expected to change consumer habits immediately, but it lays groundwork for future regulation.